Where does “μύρρα” come from?

μύρρα (Ancient Greek) comes from Arabic مُرّ — bitter, severe, sharp, painful; myrrh.

Ancestry of “μύρρα”, step by step

Step	Language	Word	Meaning
1	Arabic	مُرّ	bitter, severe, sharp, painful; myrrh

μύρρα — Etymology, Origin & Word History | Etymology Explorer